Renewable resources are resources that are replenished by the environment over relatively short periods of time. 
hnece correct answer is C

Renewable resources are resources that can be replenished naturally or through human intervention. These resources have the ability to renew themselves over a short period of time, making them a sustainable option for meeting our needs. Renewable resources play a crucial role in maintaining the balance of ecosystems and reducing our dependence on non-renewable resources.

Here are the reasons why renewable resources are the correct answer:

1. Definition of renewable resources:
Renewable resources refer to the resources that can be replenished or regenerated naturally within a human lifespan. These resources are essentially inexhaustible and can be used repeatedly without depleting their stock.

2. Examples of renewable resources:
Renewable resources include solar energy, wind energy, hydropower, biomass, geothermal energy, and tidal energy. These resources are naturally replenished and can be harnessed for various purposes such as electricity generation, heating, and transportation.

3. Solar energy:
Solar energy is derived from the sun and is considered one of the most abundant renewable resources. It can be converted into electricity using solar panels or utilized for heating purposes. The sun's energy is expected to last for billions of years, making it a sustainable and renewable option.

4. Wind energy:
Wind energy is generated by harnessing the power of wind through wind turbines. It is a clean and renewable source of energy that does not produce greenhouse gas emissions. Wind is an abundant resource in many regions, making it a viable option for electricity generation.

5. Hydropower:
Hydropower utilizes the energy of flowing or falling water to generate electricity. It is a renewable resource as water is continuously replenished through the water cycle. Hydropower plants can be built on rivers, dams, or even ocean tides, providing a consistent and reliable source of energy.

6. Biomass:
Biomass refers to organic matter derived from plants and animals. It can be used as a renewable source of energy through various processes such as combustion, fermentation, and conversion into biofuels. Biomass can help reduce dependence on fossil fuels and contribute to a more sustainable energy mix.

7. Geothermal energy:
Geothermal energy is derived from the heat stored within the Earth's crust. It can be harnessed for electricity generation or heating purposes. Geothermal energy is considered renewable as the heat within the Earth is continuously replenished through radioactive decay.

8. Tidal energy:
Tidal energy is generated by harnessing the power of tides, which are caused by the gravitational pull of the moon and the sun. Tidal energy is a predictable and renewable resource that can be used to generate electricity.

In conclusion, renewable resources are the correct answer because they have the ability to renew themselves naturally or through human intervention. These resources provide a sustainable and environmentally friendly option for meeting our energy and resource needs.